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- Question
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the
Options- A. head
- B. shank
- C. thread
- D. middle
- Correct Answer
- thread
- 1. When screw threads are to be used in a situation where power is being transmitted in one direction only, then the screw threads suitable for this will be
Options- A. square threads
- B. acme threads
- C. knuckle threads
- D. buttress threads Discuss
- 2. In radial cams, the follower moves
Options- A. in a direction perpendicular to the cam axis
- B. in a direction parallel to the cam axis
- C. in any direction irrespective of cam axis
- D. along the cam axis Discuss
- 3. In a reciprocating steam engine, the heat energy in the steam is converted into mechanical work by the to and fro motion of the piston.
Options- A. Agree
- B. Disagree Discuss
- 4. The effect of wire drawing is to decrease the area of indicator diagram and thus work done by the engine is reduced.
Options- A. Agree
- B. Disagree Discuss
- 5. Which of the following statement is correct?
Options- A. Lancashire boiler is a fire tube boiler.
- B. Fire tube boilers are internally fired.
- C. Babcock and Wilcox boiler is a water tube boiler.
- D. all of the above Discuss
- 6. In unilateral system of tolerance, the tolerance is allowed on
Options- A. one side of the actual size
- B. one side of the nominal size
- C. both sides of the actual size
- D. both sides of the nominal size Discuss
- 7. In a hydrodynamic lubricated bearing
Options- A. there is a thick film of lubricant between the journal and the bearing
- B. there is a thin film of lubricant between the journal and the bearing
- C. there is no lubricant between the journal and the bearing
- D. the lubricant is forced between the journal and the bearing, by external pressure Discuss
- 8. Stress concentration is caused due to
Options- A. variations in load acting on a member
- B. variations in properties of materials in a member
- C. abrupt change of cross-section
- D. all of these Discuss
- 9. In second type of levers,
Options- A. load is in between the fulcrum and effort
- B. effort is in between the fulcrum and load
- C. fulcrum is in between the load and effort
- D. none of these Discuss
- 10. In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole to the nearest edge of the plate should be equal to (where d = Diameter of rivet hole)
Options- A. d
- B. 1.5 d
- C. 2 d
- D. 2.5 d Discuss
Machine Design problems
Search Results
Correct Answer: buttress threads
Correct Answer: in a direction perpendicular to the cam axis
Correct Answer: Agree
Correct Answer: Agree
Correct Answer: all of the above
Correct Answer: one side of the nominal size
Correct Answer: there is a thick film of lubricant between the journal and the bearing
Correct Answer: abrupt change of cross-section
Correct Answer: load is in between the fulcrum and effort
Correct Answer: 1.5 d
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